{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:35.587947", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2011-Jan-30_to_2011-Feb-01_298.5_-1.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2011010001482}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "January 30 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 01 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 55632.81111344139}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -1.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, -1.0], [-63.53, -0.47], [-63.0, -0.25], [-62.75, -0.35], [-62.68, -0.32], [-62.65, -0.25], [-62.75, 0.0], [-62.53, 0.53], [-62.18, 0.68], [-62.03, 1.03], [-61.5, 1.25], [-60.97, 1.03], [-60.82, 0.68], [-60.75, 0.65], [-60.5, 0.75], [-59.97, 0.53], [-59.75, 0.0], [-59.85, -0.25], [-59.75, -0.5], [-59.85, -0.75], [-59.75, -1.0], [-59.97, -1.53], [-60.5, -1.75], [-60.75, -1.65], [-60.82, -1.68], [-60.97, -2.03], [-61.5, -2.25], [-61.75, -2.15], [-62.0, -2.25], [-62.25, -2.15], [-62.5, -2.25], [-63.03, -2.03], [-63.18, -1.68], [-63.53, -1.53], [-63.75, -1.0]]]]}, "2011-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, -1.0], [-63.53, -0.47], [-63.0, -0.25], [-62.75, -0.35], [-62.68, -0.32], [-62.65, -0.25], [-62.75, 0.0], [-62.53, 0.53], [-62.18, 0.68], [-62.03, 1.03], [-61.5, 1.25], [-60.97, 1.03], [-60.82, 0.68], [-60.75, 0.65], [-60.5, 0.75], [-59.97, 0.53], [-59.75, 0.0], [-59.85, -0.25], [-59.75, -0.5], [-59.85, -0.75], [-59.75, -1.0], [-59.97, -1.53], [-60.5, -1.75], [-60.75, -1.65], [-60.82, -1.68], [-60.97, -2.03], [-61.5, -2.25], [-61.75, -2.15], [-62.0, -2.25], [-62.25, -2.15], [-62.5, -2.25], [-63.03, -2.03], [-63.18, -1.68], [-63.53, -1.53], [-63.75, -1.0]]]]}, "2011-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.75, -1.0], [-63.53, -0.47], [-63.0, -0.25], [-62.75, -0.35], [-62.68, -0.32], [-62.65, -0.25], [-62.75, 0.0], [-62.53, 0.53], [-62.18, 0.68], [-62.03, 1.03], [-61.5, 1.25], [-60.97, 1.03], [-60.82, 0.68], [-60.75, 0.65], [-60.5, 0.75], [-59.97, 0.53], [-59.75, 0.0], [-59.85, -0.25], [-59.75, -0.5], [-59.85, -0.75], [-59.75, -1.0], [-59.97, -1.53], [-60.5, -1.75], [-60.75, -1.65], [-60.82, -1.68], [-60.97, -2.03], [-61.5, -2.25], [-61.75, -2.15], [-62.0, -2.25], [-62.25, -2.15], [-62.5, -2.25], [-63.03, -2.03], [-63.18, -1.68], [-63.53, -1.53], [-63.75, -1.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4099298425105644}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9593640703556847}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.27134458513325, 24.354004131344823, 24.338184900938586]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.70171241283515, 23.939097547237964, 23.83417503070899]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0819245418124757, -1.9219755095439237, -1.874192159710655]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4099298425105644, -2.1447638562954694, -2.200459779449261]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4450882608279059, -1.3382007286706894, -1.3211634968222228]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.722573365529972, -1.4623515115426295, -1.5160267875573106]}}